Grade 5 light and sound
How light travels and makes shadows and colours, and how sound is made and heard. Here is what we have for Grade 5.
Lessons
Earth and Sky at Home
Make a rainbow on the kitchen floor, grow crystals on a windowsill and build a cloud in a jar. Three classic home experiments that actually work, with the real science explained for grown-ups.
Bouncing Light: Mirrors, Water and Colour
Steer a beam around a wall with mirrors, find out why a pencil looks broken in water, and split white light into the colours hiding inside it. Three hands-on lessons on reflection, refraction and colour that build on shadows and work in any climate.
The Reason for the Seasons: Tilt, Daylight and the Solstice
Is summer when Earth is closest to the Sun? Students test the idea with real 2026 orbit distances and city temperatures from both hemispheres, walk a human orbit, graph real solstice day lengths from the Arctic to Tierra del Fuego and work out why a high Sun heats more than a low one. Nothing to buy: just the printed sheets and the room.
Online practice
Free tools
Sound Wave Lab
Play a tone, change its pitch and loudness, and watch the wave change shape. Includes a live microphone wave view to see your own voice.
Sun and Shadow
Move through the day and the year to see where the Sun is in the sky, how long a stick's shadow is, and how many hours of daylight any latitude gets.
Light and sound in other grades:KindergartenGrade 1Grade 2Grade 3Grade 4Grade 6Grade 7Grade 8All grades